Mercedes-Benz Mercedes SLK 2011-2016 7G-TRONIC Transmission Specifications
This document provides a detailed overview of the 7G-Tronic transmission specifications for the 2011-2016 Mercedes SLK. It includes key technical details such as gear ratios, torque capacity, shift patterns, and fluid requirements. The purpose of this document is to assist owners, enthusiasts, and technicians in understanding the transmission's design, performance, and maintenance needs. It is a valuable resource for diagnosing issues, performing upgrades, or ensuring proper service intervals. The information is presented in a clear and concise format, making it accessible to both technical and non-technical readers. Whether you're looking to enhance performance, troubleshoot problems, or simply learn more about your vehicle, this guide offers comprehensive insights into one of Mercedes' most advanced transmissions.
Overview Specifications
This document provides detailed specifications and technical information about the 7G-TRONIC transmission used in the 2011-2016 Mercedes SLK. It includes sections on transmission design, performance, maintenance, and key features. Use the search functionality to quickly locate specific details or navigate through sections for comprehensive insights. This guide is intended for enthusiasts, technicians, and anyone seeking in-depth knowledge about this advanced transmission system.
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Key Specifications
Number of Gears
7
Transmission Type
Automatic
Fuel Efficiency
Up to 30 mpg
Shift Time
100 ms
Torque Capacity
516 lb-ft
Available Specifications
Transmission Design
This section covers the engineering and construction of the 7G-TRONIC transmission, including its components, layout, and technological innovations.
Transmission Design
This section covers the engineering and construction of the 7G-TRONIC transmission, including its components, layout, and technological innovations.
Gear Configuration
- 7-speed automatic transmission
- Compact and lightweight design
- Optimized gear ratios for performance and efficiency
- Seamless integration with Mercedes-Benz engines
- Advanced torque converter design
- Adaptive shift logic for smooth transitions
Materials and Durability
- High-strength alloy components
- Corrosion-resistant coatings
- Precision-engineered gears
- Long-lasting fluid for reduced maintenance
- Robust housing for durability
- Thermal management system
Performance
Explore the performance characteristics of the 7G-TRONIC transmission, including acceleration, fuel efficiency, and driving dynamics.
Performance
Explore the performance characteristics of the 7G-TRONIC transmission, including acceleration, fuel efficiency, and driving dynamics.
Acceleration and Responsiveness
- Quick and precise gear shifts
- Enhanced throttle response
- Sport mode for dynamic driving
- Manual shift mode for driver control
- Reduced shift times compared to predecessors
- Improved launch performance
Fuel Efficiency
- Optimized gear ratios for reduced fuel consumption
- Eco mode for improved mileage
- Start-stop functionality
- Reduced internal friction
- Efficient torque converter lock-up
- Compliance with Euro 6 emissions standards
Maintenance and Reliability
Learn about the maintenance requirements and reliability features of the 7G-TRONIC transmission.
Maintenance and Reliability
Learn about the maintenance requirements and reliability features of the 7G-TRONIC transmission.
Maintenance Intervals
- Fluid change every 60,000 miles
- Regular software updates
- Filter replacement during service
- Diagnostic checks for early issue detection
- Lubrication system inspection
- Seal and gasket checks
Reliability Features
- Self-diagnostic system
- Protection against overheating
- Fail-safe mode in case of issues
- Extended service life with proper care
- High-quality components for reduced wear
- Comprehensive warranty coverage
Search Specifications
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- Longitudinal 7-speed
- Platform
- Mercedes-Benz MRA
- Material
- Aluminum alloy casing
- Location
- Rear-wheel drive configuration
Dimensions
- Length
- 28.74 inches (730 mm)
- Width
- 17.32 inches (440 mm)
- Height
- 14.96 inches (380 mm)
- Weight
- 187.39 lbs (85 kg)
- Fluid Capacity
- 7.4 quarts (7 liters)
- Torque Capacity
- 737.56 lb-ft (1000 Nm)
- Gear Ratios
- 4.38, 2.86, 1.92, 1.37, 1.00, 0.82, 0.73 (Reverse: 3.42)
Materials
- Housing
- Aluminum alloy
- Gears
- Case-hardened steel
- Clutch Packs
- Composite friction material
- Valve Body
- Aluminum with Teflon coating
- Seals
- Viton rubber
Features
- Shifting
-
- Adaptive shift logic
- Manual mode with paddle shifters
- Smooth transition between gears
- Quick downshifts for acceleration
- Efficiency
-
- Reduced internal friction
- Optimized gear ratios
- Lock-up clutch in all gears
- Integrated start-stop system
- Driving Modes
-
- Comfort mode
- Sport mode
- Manual mode
- Winter mode
- integration
-
- Seamless integration with ESP
- Communication with engine control unit
- Adaptive cruise control compatibility
- Hill start assist
- Durability
-
- High torque capacity
- Thermal management system
- Robust gear design
- Long service intervals
Safety Features
- Protection
-
- Overheat protection
- Torque limitation in extreme conditions
- Fail-safe mode
- Control
-
- Traction control integration
- Stability control coordination
- Anti-rollback feature
Comfort Features
- Smoothness
-
- Minimized gear shift shock
- Low noise operation
- Vibration damping
- Convenience
-
- Automatic gear selection
- Adaptive learning
- Hill descent control
- Customization
-
- Driver selectable modes
- Personalized shift patterns
- Adaptive behavior based on driving style
Accessories
- Optional Equipment
-
- Paddle shifters
- Performance tuning module
- Transmission oil cooler
- Replacement Parts
-
- Transmission filter kit
- Transmission gasket set
- Fluid pan
- Tools
-
- Transmission fluid pump
- Diagnostic scanner
- Torque wrench set
Maintenance
- Service intervals
-
- Every 40,000 miles or 48 months
- Fluid and filter change
- Inspection of seals and mounts
- Diagnostic check for electronics
- Software updates
- Notes
- Use only approved transmission fluid MB 236.15
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 7Coverage: Transmission components
- Corrosion
- Miles: UnlimitedYears: 4Coverage: External housing
- Extended
- Miles: 150,000Years: 10Coverage: Optional with additional cost
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Quality testing
- Quality Control
- Testing: Dynamic load testinginspection: 100% component inspectionCertification: ISO 9001
- Sustainability
-
- Recyclable materials
- Energy-efficient production
- Reduced waste
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.01%Production Time: 6 hours per unit
Service Information for 7g tronic transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter change
- Inspect transmission mounts
- Check for leaks
- Diagnostic scan for error codes
Use only approved transmission fluid MB 236.15
- Replace transmission fluid and filter
- Inspect and replace seals if necessary
- Check valve body operation
- Update transmission software
Special tools required for valve body inspection
- Complete transmission fluid flush
- Replace transmission filter and gasket
- Inspect clutch packs
- Perform full diagnostic test
Major service interval, recommended at authorized service center
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 7G-Tronic transmission compatible with all 2011-2016 Mercedes SLK models?
Is the 7G-Tronic transmission compatible with all 2011-2016 Mercedes SLK models?
The 7G-Tronic transmission is compatible with most 2011-2016 Mercedes SLK models, including the SLK 200, SLK 250, SLK 350, and SLK 55 AMG. However, compatibility may vary depending on the specific engine and drivetrain configuration. Always verify compatibility using your vehicle’s VIN or consult a Mercedes-Benz dealer for confirmation.
Q2 What are the maintenance requirements for the 7G-Tronic transmission?
What are the maintenance requirements for the 7G-Tronic transmission?
Regular maintenance for the 7G-Tronic transmission includes fluid and filter changes every 60,000 to 100,000 miles, depending on driving conditions. Inspect for leaks, ensure proper fluid levels, and monitor for unusual noises or shifting issues. Use only Mercedes-Benz-approved transmission fluid and follow the manufacturer’s service schedule for optimal performance and longevity.
Q3 How do I replace the 7G-Tronic transmission in a 2011-2016 Mercedes SLK?
How do I replace the 7G-Tronic transmission in a 2011-2016 Mercedes SLK?
To replace the 7G-Tronic transmission, first disconnect the battery and remove the transmission pan to drain the fluid. Disconnect electrical connectors, driveshaft, and mounting bolts. Use a transmission jack to lower and remove the old transmission. Install the new transmission, reconnect all components, and refill with approved fluid. Follow the manufacturer’s torque specifications and perform a test drive to ensure proper operation.
Q4 What should I do if my 7G-Tronic transmission is not shifting smoothly?
What should I do if my 7G-Tronic transmission is not shifting smoothly?
If your 7G-Tronic transmission is not shifting smoothly, check the transmission fluid level and condition first. Low or degraded fluid can cause shifting issues. Inspect for error codes using a diagnostic tool. Common causes include faulty solenoids, worn clutch packs, or software issues. Reset the adaptive learning system or update the transmission control module software if necessary.
Q5 How can I optimize the performance of my 7G-Tronic transmission?
How can I optimize the performance of my 7G-Tronic transmission?
To optimize performance, ensure regular maintenance, including fluid and filter changes. Use high-quality, Mercedes-Benz-approved transmission fluid. Avoid aggressive driving and excessive towing to reduce wear. Consider updating the transmission control module software for improved shifting behavior. Regularly inspect for leaks and address any issues promptly to maintain optimal performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mercedes-Benz 7G-Tronic Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and operation of the 7G-Tronic transmission for 2011-2016 SLK models.
Technical Service Bulletin for 7G-Tronic Transmission
Coming SoonLatest updates and fixes for common issues related to the 7G-Tronic transmission in 2011-2016 SLK models.
7G-Tronic Transmission Parts Catalog
Coming SoonDetailed catalog of genuine parts and accessories for the 7G-Tronic transmission in 2011-2016 SLK models.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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